I'm not sure about different brands, but you can probably find a great review in a book called the Baby Bargains Book (www.babybargainsbook.com). You should be able to find a current copy in a book store. Just flip to the chapter on crib reviews and they'll have recommendations for the best bang for your buck.
I really think they're all pretty much alike. You can count on an arm or leg getting stuck in the rails at some point and it doesn't matter what brand the crib is -- it has to do with the fact that you are putting a baby in it. You can also guarantee teeth marks. A plastic guard over the rail is a good idea, though I have heard of those pinching little baby lips. Ours was just plain wood. Teething will be more of a problem with the softer woods, and more noticeable on a smooth rail. Also, a lot of the new models have large corner posts that you can't tie a bumper pad around. However, that might not be a big deal if there's a recommendation that you shouldn't use bumper pads because they are a choking hazard.
Our experience with cribs: Both of our children were in toddler beds (or a "big kid" bed) by 17 months. Now that te littlest one is nearly 2, the crib is a distant memory. I'm soo glad we didn't spend any money on it!
My recommendation would be an inexpensive crib (like a Jenny Lind -- just make sure the rails come down with a one-handed or kick-release mechanism), then spend your money and your energy on big kid furniture!
Good luck!